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Sinodrills Self Drilling Rock Bolt
Self drilling rock bolts sizes: R25, R28, R32N, R32S, R38, R51N, R51L, T76N, T76S;
Thread standard: left thread and comply with
Self drilling rock bolts length: 2000mm, 3000mm, 4000mm, 6000mm;
Sinodrills Self Drilling Accessories
Self drilling rock bolting accessories: bit, plate, coupling sleeves, nuts;
Self Drilling Rock Bolt and Accessories
Guizhou Sinodrills Equipment Co.,Ltd.
rock drilling tools
